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प्रश्न
The horizontal rows in a periodic table are called _____.
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उत्तर
The horizontal rows in a periodic table are called periods.
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संबंधित प्रश्न
Would you place the two isotopes of chlorine, CI-35 and CI-37 in different slots because of their different atomic masses or in the same slot because their chemical properties are the same? Justify your answer.
Name the metals in the first twenty elements.
Name the cation and the anion in the salt – calcium sulphate
Give the symbol and valency of the following element and radical.
Sulphate
Give the chemical formula of sodium bicarbonate
The element which has the least tendency to lose electrons is ______
In the modern periodic table, elements are arranged according to their ______
Arrange the following elements in the increasing order of their metallic character
| Mg, | Ca, | K, | Ge, | Ga |
Explain the position of hydrogen in the periodic table.
Name the following metal:
A metal present in period 3, group 1 of the periodic table.
